curl/docs/cmdline-opts/metalink.d

c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: metalink
Help: Process given URLs as metalink XML file
Added: 7.27.0
Category: misc
Example: --metalink file $URL
See-also: parallel
Multi: single
---
This option was previously used to specify a metalink resource. Metalink
support has been disabled in curl since 7.78.0 for security reasons.
copyright: update all copyright lines and remove year ranges - they are mostly pointless in all major jurisdictions - many big corporations and projects already don't use them - saves us from pointless churn - git keeps history for us - the year range is kept in COPYING checksrc is updated to allow non-year using copyright statements Closes #10205 2023-01-02 20:51:48 +08:00			`c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.`
docs/cmdline-opts: add copyright and license identifier to each file gen.pl now insists on C: and SPDX-License-Identifier: fields to be present in all files. Closes #9002 2022-06-14 06:12:03 +08:00			`SPDX-License-Identifier: curl`
cmdline-docs: more conversion 2016-11-16 21:20:36 +08:00			`Long: metalink`
			`Help: Process given URLs as metalink XML file`
			`Added: 7.27.0`
docs: add categories to all cmdline opts Adapted gen.pl with 'listcats' This commit is a part of "--help me if you can" Closes #5680 2020-07-13 20:15:04 +08:00			`Category: misc`
curl.1: provide examples for each option The file format for each option now features a "Example:" header that can provide one or more examples that get rendered appropriately in the output. All options MUST have at least one example or gen.pl complains at build-time. This fix also does a few other minor format and consistency cleanups. Closes #7654 2021-08-31 22:37:14 +08:00			`Example: --metalink file $URL`
curl.1: require "see also" for every documented option gen.pl now generates a warning if the "See Also" field is not filled in for a command line option All command line options now provide one or more related options. 167 "See alsos" added! Closes #8019 2021-11-15 22:58:20 +08:00			`See-also: parallel`
cmdline/docs: add a required 'multi' keyword for each option The keyword specifies how option works when specified multiple times: - single: the last provided value replaces the earlier ones - append: it supports being provided multiple times - boolean: on/off values - mutex: flag-like option that disable anoter flag The 'gen.pl' script then outputs the proper and unified language for each option's multi-use behavior in the generated man page. The multi: header is requires in each .d file and will cause build error if missing or set to an unknown value. Closes #9759 2022-10-18 16:39:43 +08:00			`Multi: single`
cmdline-docs: more conversion 2016-11-16 21:20:36 +08:00			`---`
metalink: remove Warning: this will make existing curl command lines that use metalink to stop working. Reasons for removal: 1. We've found several security problems and issues involving the metalink support in curl. The issues are not detailed here. When working on those, it become apparent to the team that several of the problems are due to the system design, metalink library API and what the metalink RFC says. They are very hard to fix on the curl side only. 2. The metalink usage with curl was only very briefly documented and was not following the "normal" curl usage pattern in several ways, making it surprising and non-intuitive which could lead to further security issues. 3. The metalink library was last updated 6 years ago and wasn't so active the years before that either. An unmaintained library means there's a security problem waiting to happen. This is probably reason enough. 4. Metalink requires an XML parsing library, which is complex code (even the smaller alternatives) and to this day often gets security updates. 5. Metalink is not a widely used curl feature. In the 2020 curl user survey, only 1.4% of the responders said that they'd are using it. In 2021 that number was 1.2%. Searching the web also show very few traces of it being used, even with other tools. 6. The torrent format and associated technology clearly won for downloading large files from multiple sources in parallel. Cloes #7176 2021-06-01 22:24:00 +08:00			`This option was previously used to specify a metalink resource. Metalink`
doc/cmdline: fix grammar and typos Closes https://github.com/curl/curl/pull/7454 Closes https://github.com/curl/curl/pull/7455 Closes https://github.com/curl/curl/pull/7456 Closes https://github.com/curl/curl/pull/7459 Closes https://github.com/curl/curl/pull/7460 Closes https://github.com/curl/curl/pull/7461 Closes https://github.com/curl/curl/pull/7462 Closes https://github.com/curl/curl/pull/7463 2021-07-20 13:06:56 +08:00			`support has been disabled in curl since 7.78.0 for security reasons.`